How did the introduction of animals in the columbian exchange affect many
native american cultures?
o
a. new arrivals caused many native grasses to die out.
b. new arrivals caused many native animals to die out.
c. keeping livestock allowed many hunters to do other things.
d. keeping livestock ended the practice of growing crops.

Which impact did the civil war have on the spread of disease in texas a. disease decreased bc people left the area to fight in the war b. disease increased bc medicine was in short supply. c. disease increased bc many new diseases were brought to the area d. disease decreased bc confederate doctors distribute new medicines to local communities